MPEC 2001-M41: 1999 TN12
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M.P.E.C. 2001-M41 Issued 2001 June 25, 14:29 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 TN12
Revision to MPEC 1999-T56
Observations:
J99T12N VC2001 06 19.93110 12 54 03.42 -00 25 10.5 493
J99T12N VC2001 06 19.94882 12 54 03.82 -00 25 02.3 493
J99T12N VC2001 06 20.92062 12 54 24.27 -00 18 31.2 493
J99T12N VC2001 06 20.93012 12 54 24.36 -00 18 27.4 493
J99T12N VC2001 06 21.90624 12 54 46.29 -00 12 09.8 493
J99T12N VC2001 06 21.91565 12 54 46.55 -00 12 06.0 22 V 493
Observer details:
493 Calar Alto. Observers DANEOPS Team (M. Busch, A. Seib, F. Hormuth).
Measurers R. Stoss, A. Gnadig, A. Doppler. 1.52-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
010619 493 14.3- 8.8- 010621 493 13.3- 8.3- MPC 39551 +0.026 day
Orbital elements:
1999 TN12
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Spahr
M 220.33106 (2000.0) P Q
n 0.38034979 Peri. 150.16271 +0.94449912 +0.04938084
a 1.8866033 Node 212.44926 +0.00060166 +0.98837635
e 0.3913068 Incl. 37.25125 +0.32851338 -0.14378358
P 2.59 H 17.5 G 0.15 U 2
Residuals in seconds of arc
991010 704 0.6- 0.1- 991013 046 0.0 0.4+ 991101 118 0.5- 0.6+
991010 704 0.4- 0.2+ 991013 704 0.1+ 0.4- 991101 118 0.4- 0.5+
991010 704 0.0 0.0 991013 704 0.4+ 0.1+ 991101 046 0.1- 1.0+
991010 704 0.4- 0.4+ 991013 704 0.9- 0.0 991101 046 0.2+ 0.1-
991010 704 0.1+ 0.3+ 991013 711 0.2+ 0.1- 991101 046 0.6+ 0.2+
991011 704 0.1+ 1.2- 991013 711 0.3- 1.8- 991101 046 0.6+ 0.4-
991011 704 0.1- 0.7- 991013 704 0.0 0.7+ 991101 046 0.3+ 0.2+
991011 704 0.4+ 1.0- 991013 711 0.2- 1.8- 991203 428 0.1+ 0.8-
991011 704 0.4+ 1.1- 991017 118 0.3- 0.3+ 991203 428 0.1+ 0.4-
991011 704 1.2+ 0.5- 991017 118 0.0 1.1+ 000103 413 0.0 0.4-
991011 704 1.4+ 0.7- 991017 118 0.8+ 0.8+ 000103 413 0.1- 0.1-
991011 704 0.2+ 0.5- 991018 118 0.1- 0.7+ 000315 413 0.4+ 0.0
991012 704 0.4- 0.4+ 991018 118 0.0 0.4+ 000315 413 0.7+ 0.4-
991012 704 0.1+ 0.6+ 991018 118 0.4- 0.6+ 000315 413 0.1+ 0.1+
991012 704 0.0 0.9+ 991020 402 0.2+ 0.3+ 010619 493 0.8- 0.1-
991012 704 0.0 0.3+ 991020 402 0.2- 0.0 010619 493 0.1+ 0.8+
991013 046 0.7- 0.5+ 991020 402 0.2+ 0.4- 010620 493 0.7+ 0.4+
991013 046 0.5- 0.6+ 991024 402 0.1+ 0.4+ 010620 493 0.9- 0.5+
991013 046 0.4- 0.9+ 991024 402 0.4- 0.6- 010621 493 0.7- 0.1+
991013 046 0.3- 1.2+ 991024 402 0.9- 1.0- 010621 493 0.1+ 0.4+
Ephemeris:
1999 TN12 a,e,i = 1.89, 0.39, 37 q = 1.1484
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 06 20 12 54.08 -00 24.7 1.870 2.332 103.8 25.0 21.9
2001 06 30 12 58.66 +00 30.9 1.976 2.300 95.0 26.1 22.0
2001 07 10 13 05.41 +01 03.8 2.081 2.266 86.9 26.6 22.1
2001 07 20 13 14.04 +01 18.1 2.181 2.230 79.3 26.6 22.1
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-M41
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